28307890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12809}}^1$

素因数の和:12846

約数の個数: 32

約数和(自身を含む): 58106160

約数和(自身を除く): 29798270

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 12809, 25618, 64045, 128090, 166517, 217753, 333034, 435506, 832585, 1088765, 1665170, 2177530, 2830789, 5661578, 14153945, 28307890]

約数ペア:

[(1, 28307890), (2, 14153945), (5, 5661578), (10, 2830789), (13, 2177530), (17, 1665170), (26, 1088765), (34, 832585), (65, 435506), (85, 333034), (130, 217753), (170, 166517), (221, 128090), (442, 64045), (1105, 25618), (2210, 12809)]